That is according to former Wimbledon men’s singles champion Pat Cash.
South African Harris was participating in not only his first Wimbledon match but his debut match on a grass court on Tuesday.
His task could not have been more daunting as he was drawn against eight-time champion Roger Federer.
Cash says Harris has “done it the hard way” to reach his first Wimbledon tournament and many other players want him to succeed.
“Harris is another player who’s come through the grassroots, came all the way through,” Cash said on BBC One.
“He’s done it the hard way, worked his way up through the challenges.
“Really loose and relaxed type of player.
“I think he’ll enjoy this occasion, you never know how the nerves will settle.
“A lot of players are sort of routing for him in the locker room because he’s done it the hard way.”
Two-time Wimbledon champion Boris Becker called for Harris to enjoy the clash against Federer, insisting miracles do happen.
“It’s his first match on grass for him, what a way to start,” Becker said.
“Wimbledon, Centre Court, against the greatest of all time.
“If you want to start on grass, that’s your way to move forward.
“Nothing to lose, he did win his first Grand Slam match at the French Open just a few weeks ago. Just enjoy the moment.
“I don’t think you can seriously believe that Roger will lose this match.
“But then again miracles have happened at Wimbledon before.”
Harris won the first set on Centre Court but Federer bounced back to win the second in rapid time.